select_sequential_string⌘+shift+0: Selects other strings resembling the current selection that have trailing digit(s). “Sequential” might be misleading as there is no actual checking for this - I just look for digit(s). (If you have a better name for this, I'd love to hear it.)

select_strict_sequential_string⌘+shift+1: Like select sequential string, but actually checks for proper sequence (I should probably rename that). If you have “Item 5” selected, this will select “Item 6”, “Item 7”, …, excluding regions that don't match the sequence (e.g. if “Item 99” appeared between 6 and 7. Note: Invert selections will invert the selection to 99 currently).

TODO

Different colour indicators to show selection end-points. It's easy to get lost once we start skipping.